cgroup.h: remove some functions that are now gone
authorGreg KH <gregkh@linuxfoundation.org>
Fri, 3 May 2013 23:26:59 +0000 (16:26 -0700)
committerTejun Heo <tj@kernel.org>
Tue, 14 May 2013 18:50:42 +0000 (11:50 -0700)
cgroup_lock() and cgroup_unlock() are now no longer exported, so fix
cgroup.h to not declare them if CONFIG_CGROUPS is not enabled.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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